export function styles(className: string): string {
  return `
    .${className} {
      --btn-primary: #0366d6;
      --btn-danger: #d73a49;
      --btn-secondary: #6a737d;
      --btn-hover-lighten: 10%;
      
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      padding: 8px;
      
      .btn-group {
        display: flex;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        
        &:not(:last-child) {
          margin-right: 8px;
        }
      }
      
      .btn {
        all: unset;
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 8px 12px;
        font-size: 13px;
        cursor: pointer;
        transition: all 0.2s ease;
        position: relative;
        
        .icon {
          font-size: 14px;
        }

        /* 按钮类型 */
        &.add-btn {
          background: var(--btn-primary);
          color: white;
        }
        
        &.reset-btn {
          background: var(--btn-secondary);
          color: white;
        }
        
        /* 悬停效果 */
        &:hover {
          filter: brightness(calc(100% + var(--btn-hover-lighten)));
        }
      }
    }
  `
}
